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1. 1 2 3 4 5 6 7 8 J4 us AC FEMALE Le AC FEMALE ie AC FEMALE PLUG AC FEMALE MAINS EXPORT L 7 7 N 1 b D aes T Di i z mark wire color Se e g ig al S E S E E n Jalal TT Wee TUE TL A T T D D TES 4 T 1 N A 250V5A F J2 E LI N brown RVO S brown RVO S J3 E L N N blue RVO S blue RVO S J4 E L N mans sans ms NS e E J5 1 4 3 AA ASE ee at sheer EH H Lili e gt t et tt et TT lala AAA AS 8 CIRCLE WARMER UN Brian RR BEI POWER SWITCH FIT 1A 25QV diko PS A3 CIRCLE WARMER TOP LIGHT 1F2 1 2 L brown RV0 5 L e 2 1 9 n RV0 5 L220VAC2 TI 1 SVACI EN Er le Y PT IA 250V gt ae 2 Nowe RS 4 5 9 AA AA ER O O A 2F2 1 2 E yellow amp greenRVO 5 RVO 5 N 3 5VAC2 3F1 2 EA NEE 3F2 1 E EEE 3 4F1 y 2 o0 AIUI SWITCH MODE POWER q 3 CUNA AAA A O A g 2 e IR 0 z lt KU 4 lt RES A OUT DC28 6V z 2 A EE e ee bt FASAD E EE Al S1 ellow zgreenRVO0 5 E ea PE rer ed S 800100105 100 0 di AE JEST AO AAA A E Pai ie 6 eae A ol MV300 VENTILATOR OUTPUT AWG 18 red black A2 BAT 24V Af AlU2 POWER UINT MV30026 sa ugg BERI RI EE Gro Ean 15 DCSV apar al Bees esses J1 DC28 6V k TI 5 2 GND AWG I8 black a Renate ara ILLLLLJL L L LL m saveur L aml S tt ttt ttt 3 Batd AWG 18 yello J4 OUT 2 al 3 Vo
2. Inhaled tidal volume monitored Aeon7500A service manual 1 3 Tools and equipments for servicing and testing Task Equipment Routine verification Aeon7500A User Manual Ventilation mode checkout Respirometer hand held Stop Watch Disassembly One set of Allen keys Cross screwdriver Wrench Aeon7500A service manual 2 Structure and Operation principle 2 1 System components I Ln WO e 13 Castor Absorber circuit MV300 Screen O flush N20 pressure gauge Power switch Manifold valve GO Os A N 12 Drawer Bellows assembly Common gas outlet O pressure gauge Air pressure gauge Flowmeter Aeon7500A service manual O N OO 13 15 Inhalation port O inlet Air inlet Analogue port Auxiliary mains socket outlet Nameplate O sensor interface Equipotential ao o A N 14 16 Exhalation port N20 inlet Fuse Auxiliary mains socket outlet switch Fuse Cable port P amp V interface Power socket Aeon7500A service manual 2 2 Pneumatic system 2 2 1 Gas supply 1 Air inlet 2 Connect to Air 3 N O inlet EI 4 Connect to NO 5 O inlet Connect to O 7 Pressure gauge N Ned 8 El Aeon7500A service manual 2 2 2 Gas board Checkvalve Micro checkvalve N20 cut off valve 5 Gas reservoir 6 Common gas outlet O2 flush valve 8 Whistle 9 Reversal valve at Eh GW K Aeon7500A service manual 2 2 3 Pipe connection
3. 31 Aeon7500A service manual 3 2 Test MV300 anesthetic ventilator 3 2 1 Testing equipments a stopwatch b ventilating meter c digital pressure gauge or U manometer d 3L Reservoir Bag and fish joint haggis e Oxygen cylinder the concentration gt 95 f digital multimeter g oxygen monitor 3 2 2 MWV300 standard operation parameters ventilation mode VCV mode tidal volume 600mL breath frequency 20times per minute l E 1 2 Lower limit of airway pressure 0 5kPa Upper limit of airway pressure 4kPa Tp OFF 32 Aeon7500A service manual 3 2 3 Debugging step 1 adjust the voltage Switch on the power supply Adjust the potentiometer W2 and measure the first feet voltage of U3 on the forward board using multimeter to make the output voltage is 8V 0 01V 2 Calibrate O sensor Select the menu option of O2 sensor checking check the 21 and 100 item in turn according with the cue in the menu then unbolt the O2 sensor from the machine At this point we can see the montor value of O2 is 3 Calibrate flow sensor Select the menu option of flow sensor and check the flow sensor according with the cue in the menu 4 Calibrate flow valve Install the ventilator onto the anesthesia connect the pipeline and use water lung as stimulant lung Ventilate at the standard working state and set the tidal volume as 200ml 600ml respectively If the error of the o
4. Replace LCD Change data line and reconnect if failed again check the connectors Turn to experts LCD harness damaged or disconnect Replace sensor board Reinstall sampling tube Reinstall flow probe Cleaning or change the sampling probe Check up the part carefully replace it necessarily Recalibrate it Keep the machine operate usually Recalibrate it 100mL is reachable but 50mL is not recommended Turn to pressure mode Ensure that flow sensor calibration can be performed correctly Check the exhalant block carefully Reconnect it rightly Check or change Aeon7500A service manual The pressure of ventilator is on The alarm setting is not correct Reset the alarm limits No power provide to ventilator Perhaps the power line disconnects Check and reconnect it Perhaps the power switch does not turn Turn the power switch on on Power key on the screen is not pressed Press power key lasting for 3 secs for 3 seconds Date line disconnects Reconnection The knob can t be operated and Date line disconnects Reconnection the cursor on the screen either Startup again if the malfunction exists Check the knob PCB and connection Turn to experts No patient parameters display Sampling probe falls off Reset probe rightly Sampling tube falls off connection is Reset tube and connect it again wrong Reconnection Date line disconnects There s a great difference Sampling probe
5. LLO VADO idad 15 23 PEETRE E REMISE E dat de tn tie 16 ah POWER TTT 16 K WAV SOO GROS NEC VENTO IEA AAA AS de ee 17 e O AS A ihhoimhmiheanmhnheanmhmhhmh T 23 St TES 9 gt 1 1 ETT 29 3 1 ENEUMATIC SYSTEM TES T 29 S WOSEDIPC MEN CR e a e e e ain 29 dz POWE er UNKLE AVO n aid 30 K NO CUO AEV A AA Mi 30 date Doa DU NE RA A A A AA 30 SE ESA e e oo o OR O arr er er EN Ro it eer 30 SLO JETEN CCU LOGI CC ten E tte ese ene 31 IEA VIPO ON rA A A a 31 3 2 HES TVIY S00 ANESTHETIC VENTILATOR odiada lada 32 Ll TESSA TT T TTT 32 322 MV0 standart operation parameter ai 32 2 AICO CRIME ISICD AC o A I 33 E TROUBEESHOOTEN EHH 40 4 1 ANESTHESIA MACHINE TROUBLESHOOTING AND ANALYZING ccooocccncncnnccnnnnnnnnnnnnnnnnnnnnnnonnnnnnnnnnnnnnnnnnnnnnnnnnnanincnns 40 4 2 MIVS300TROUBLESHOO FINGAND AN ALY ZING dde 41 S SPECIFICATIONS TT 44 5 1 SYSTEM TECHNIC AIZSPECIFICATION 0 A 44 JAS e NANO E 44 Aeon7500A service manual A A A annamh 44 TAS COSS C lid 45 5 2 POWER SUPP santidad da 46 E POI COU CCOO Ne tesa rece EE E EA iririr E mm 46 5 3 ELECTROMACNE TE COMPATIBILI Y nn nn aaa De Rd ie 47 5 4 PES SIAE SPECIAL AHO NS eS 48 5 5 ENVIRONMENT REOUIREMENTS tada ce tt aime 48 5 6 BREATHING SYSTEM TECHNICAL SPECIFICATIONS oooooooooooonnnonononononononononononononononnnnnonnnnnnnnnnnnnnnnnnnnnonnnnnnnnnononnnnnoss 49 5 7 ANESTHETIC VENTILATOR o A Maat a thsi 50 IZAL Porlormanceol V CHIU GION E A at 50 2 DCE VENIAM ON NOLE dad 50 5 7 3 DCS venti
6. the error should be in the range of 18 36 Aeon7500A service manual d Alarm for exceeding the lower limit of airway pressure Set the lower limit pressure of air passage to 0 0 5kPa 1kPa and 2kPa in turn Pressurize the pressure sampling outlet with standard measuring container to make the pressure of air passage reach the setting of lower limit or a little short Increase the pressure after the alarm occurs till the alarm disappeared Note the indicate value of pressure gauge the error should be in the range of 15 At the same time quickly adjust the pressure of the air passage to the setting of lower limit or a little short Time with the stopwatch until the alarm occurs again The time should be between 4s and 15s e Alarm for exceeding the upper limit of respiratory rate Set the data of upper limit of respiratory rate to 4bpm 20 bpm 100 bpm in turn Adjust the parameters of respiratory rate until the alarm for exceeding the upper limit of respiratory rate happening Note the count value of respiration rate Compare it with the value of the setting If the respiratory rate is less than 20 BPM the error is in the range of 1 BPM Others the the range is 5 f Alarm for exceeding the lower limit of respiratory rate The method is same as e g Alarm for exceeding the upper limit of oxygen concentration Adjust three O which concentrations are differ Mix them enough Connect the O sensor with probe of the oxygen analyzer
7. 210000130 Na 122000361 122000462 0 1 J1 J2 E aeonmed MV300 a Re lof 2 121000023JL 1 2 3 4 6 7 8
8. Concentration Temperature control dial compensating valve f Baffle system Machine outlet check valve Liquid anesthetic 15 Aeon7500A service manual 2 3 Electrical system 2 3 1 Power supply 1 2 3 4 1 connect with anesthetic ventilator 2 connect with power switch 3 Power socket 4 Auxiliary mains socket outlet 16 Aeon7500A service manual 2 3 2 MV300 anesthetic ventilator 2 3 2 1 Operation principle The high pressure oxygen enters the pressure reduction valve l and the output pressure from the pressure reduction valve is stabilized at 0 25MPa already adjusted before ex factory The output gas from the pressure reduction valve enters the electromagnetic valve In inspiring the electromagnetic valve is open the two way outputs enter the flow valve and the pressure reduction valve ll respectively The one entering the pressure reduction valve Il presses on the diaphragm in the expiration valve by means of the gas pressure to control the opening and closing of the expiration valve and the output pressure is stabilized at 0 05MPa already adjusted before ex factory The other one enters the flow valve the tidal volume value could be changed through adjusting the flow valve The pure oxygen entering the gas line is mixed in accordance with a certain proportion in the gas room The air enters from the venturi type valve and a unidirectional valve is installed in the venturi type valve to prevent the
9. Connect to O flowmeter Connect to N 0 flowmeter Connect to MV300 gas box Connect O inlet Connect to NoO inlet 6 Connect to Air inlet Connect to vaporizer o Ml Aeon7500A service manual R LA ia ha 8 lua 11 4 O inlet 5 Connect to Air pressure gauge 6 Connect to N20 pressure gauge Connect to power board Le Connect to N20 flowmeter Ei Connect to Air flowmeter 10 Connect to O flowmeter Connect to O pressure gauge Connect to vaporizer outlet Connect to vaporizer inlet Connect to flowmeter outlet Pf 10 Aeon7500A service manual 2 2 4 Absorber circuit 3 5 4 6 KW 8 4 F ks 7 1 patient 2 inhalation valve 3 exhalation valve 4 APL valve 5 absorber 6 fresh gas compensation manual reservior 11 APA 2 Pressure sampling for exhalant gas 4 Airway pressure gauge 6 Non absorbed gas leave absorber 8 Manual Auto ventilation switch 10 Inhalation valve non return 12 ard YA LS CASE L ARS LR TA CPE E SNS T Aeon7500A service manual Manual ventilation gas flow diagram I Exhalant gas from patient 1 3 Pass exhalation valve non return 5 Exhalant gas enter absorber 7 Fresh gas compensation 9 Pressure sampling path for APL valve 11 Inhalant gas to patient G S sA var lez LCA IN 4 PET J INA IN Y p A S DO AA my POPs os AA N L J 7 a ARAN E Po OTRA RATRE DAS 2 Pressure
10. Representative The system with this label under the stipulations in the operating manual complies with the requirements related from 93 42 EEC xxxx is the certificate number used by Aeonmed quality system to certify authorizations Aeon7500A service manual 1 2 Definitions Acronyms and Abbreviations Fspont ftotal EIO FiO2 E MV MV spont Paw PEEP Pimit Pmnean Poeak Polat Vsens TP VT VIE Vii Respiratory rate i e breaths per minute setting Respiratory rate of spontaneous breathing by the patient monitored Total respiratory rate i e sum of f and font monitored Delivered oxygen percentage monitored data Oxygen percentage setting Inspiration to expiration time to E ratio monitored Exhaled minute volume monitored Minute volume of spontaneous expiration by the patient monitored Patient airway pressure Positive end expiratory pressure monitored data Inspiratory airway pressure in PCV setting Mean airway pressure is updated every at the end of last breath cycle i e a running mean monitored Maximum patient airway pressure during a patient breath monitored Patient airway pressure measured at the end of inspiratory pause time monitored Volume sensitivity setting Inspiratory pause time increase inspiration time to facilitate increased patient oxygenation setting Tidal volume of mechanically delivered breaths setting Exhaled tidal volume monitored
11. There are black line or color line on the screen LCD brightness is very dim The tidal volume monitoring value 1s zero but connection 1s right and bellows works normally No pressure time waveform Tidal volume is inaccurate Manual ventilation turn to mechanical ventilation is slowly Small tidal volume is inaccurate When bellows does not work Exhaust ventilator working port blowing Differential pressure sensor failure Flow valve calibration failure Breathing circuit leakage or seeper Circuit board can not match The circuit damaged LCD failure The data line and data line interface are not connected with LCD correctly The gas pressure valve failure Sensor board failure Sampling tube fell off Flow probe fell off Flow probe blocked Perhaps sampling tube pond leakage sampling probe damaged Flow sensor calibration failed Flow valve calibration failed It needs 5 minutes to operate before operation Flow valve calibration failed Beyond the allowable range probably Perhaps ventilation mode used is not correct Flow abnormal sensor calibration may be Exhalant block failure The connection of data line is failure The magnetic valve of exhalant block is failure 42 Change with new one Use software to calibrate flow valve Replace flow valve Carry out maintenance Turn to experts Keep out the spot not testing oneself turn to experts
12. V0 5 browiblue browibrowiblue blue 3 Y vellobrowiblue A RR RIRE R MO FE I Pen ee WG 18 E blacked green lack aeonmed Aeon 75004 revision mark revises file signature amp date Anesthesia MAIN WIRING designatot technid i check pf standard iii sheet 1 of 1 7500AJL 1 2 3 4 5 6 7 8 W2 210000585 DISPLAY TERMINAL TO TOP LIGHT W15 210000586 EU S 9Pins D type Interface 25Pins D type Interface fear pe o l VENTILATOR 2 Y1 VALVE INSP S 8 1 9 1 240000080 W8 122000288 D9 CABLE interface D25 CABLE Interface VGA interface W14 122000285 E 210000142 gt act z 2 Z BE rer e Z ERE TT la 7 A m D E Ji S DC AC reverser S 5 1 ars NO 5 POWER UNIT BL S ES 122000290 Brel LCD BackLight harness 3 W10 122000282 E W1 122000465 CE 1 L LT l a l Acid battery 2X12V2AH sm REC Fa d U 210000151 1112 33 J6 BAT2 red Al A8 E J2 redX1 1 PM510 Sampler S 1 5V AMPLIFIER UINT 114 back B 210000313 S 2 GND Verifier VAL a sou PRE maxa 3 foe PC104 bus wi 7 black 4 RN 4 12V L2 7_black_ 4 1 5 24V W12 122000284 6 JA12V E TO 7500A Anesthesia W7 lcd line 10 4 TFT i A9 02 Cell interface
13. alarm longer than 7s 3 1 5 Oxygen flush Connect the flowmeter which range is 10L min 100 L min to the common gas outlet when the input pressure is 0 4 0 45MPa Turn on the oxygen flush valve And observe the indicated value which should be in the range of 35 L min 75 L min 30 Aeon7500A service manual 3 1 6 Test breathing circuit leakage Flow control valve Stifled the joint which leads to air reservoir and the patient end of tee fitting Turn off the APL valve Insert a flowmeter in the circuit See figure 3 Adjust the flow valve making the valve of pressure gauge keep at 3KPa The value of flowmeter should not larger than 120ml min Pressure qauge Flowmeter Breathing circuit Inhalation valve Fresh gas Inlet exhaltion valve Reservoir bag connector 3 1 Vaporizer Place the vaporizer into the testing room more than 3 hours 20 3 C The vaporizer should be tested solely Pour the vaporizer until the value of anesthetic is beyond the lower limit with 10ml test the vaporizer 45 minutes later 3 Place the anesthetic gas analyzer to the exit of vaporizer to testing 4 Adjust the flux of the vaporizer to 1 L min and 5 L min in turn Observe the concentration show of the anesthetic gas analyzer after one minute When the vaporizer at the place of OFF its output concentration should not larger than 0 1 The error of gauged concentration should no less than 20 or 5 of the full range
14. internal structure Keyboard PCB Inverter PCB 6 LCD harness 24 Aeon7500A service manual 2 3 3 2 PC104 mainboard PC104 mainboard is the core controller of system It s intended for signal processing signal control equipments management and information display etc Warning Wrong connection may lead to mainboard burned speaker a 3 4 3 4 LCD harness 1 i l To CRT interface 2 3 3 3 Communication board Communication board A sort of extended control unit connected with mainboard by serial interface It used for signal connection keyboard input and power management and so on 4 9 2 TTT BI e E WN A Z 1 Cable harness d m m l l l S La d r R gt Ul as A 6 keyboard knob Analogue harness 25 Aeon7500A service manual 2 3 3 4 PM510 collecting board Function signal acquisition for 104 buses iy I ire by 1 A l 1 4 4 E 03 20 Abel GHE 0300 ZHONGTAI PM 510L To mainboard 2 3 3 5 Keyboard PCB There are four keys and one power indicator on the face of keyboard PCB And one 8 pin male stitch on the back used to connect with communication board f 26 Aeon7500A service manual 2 3 3 6 Inverter Function Providing high voltage for display startup required WARNING No touching black part in the electrified surrounding as shown in the followi
15. medical equipment directly to the alternating current outlet on the wall Only the alternating current supply of the isolated transformer can be used Otherwise the surface leaking current may exceed the range permitted by EN60601 1 under the normal conditions and misoperation may cause injury to patients or operators Anesthesia 7500A is equipped with all purpose alternating current outlet for connecting other medical equipments Do not connect non medical equipment to these outlets Otherwise the surface leaking current may exceed the range permitted by EN60601 1 under normal conditions and misoperation may be dangerous to patients or operators A complete system current leaking test according to EN60601 1 must be performed after any equipment is connected to these outlets AN WARNING medical electrical equipment operators contact non medical electrical equipment and patients at same time It is dangerous of patients or operators 47 Aeon7500A service manual 5 4 Physical specification All specifications are approximately maybe changed at any moment without notice A CAUTION Do not put Aeon7500A into the shock environment A CAUTION Do not lay the heavy on the top or into the draws System Height 1350mm Width 656mm Depth 622mm Weight 148kg Castor 125mm 5 in with breakers on the front castors Drawer 130mm H x465mm W x360mm D Display 10 4 TFT LCD Cylinder gauge Scale 0 to 25MPa Resolution 50kPa Accura
16. passing through the tee and then put them in the air Adjust the data of upper limit of respiratory rate until the alarm for exceeding the upper limit of respiratory rate happening h Alarm for exceeding the lower limit of oxygen concentration The method is same as 9 37 Aeon7500A service manual 17 Ventilation Mode a Standby Mode At the state of Standby Mode all parameters are effective b VCV mode At the state of VCV Mode the parameter of Plimit is ineffective displaying Set the breathing rate to 20 BPM The respiratory rate should be 19 21 BPM c Pressure Mode At the state of Pressure Mode the parameter of Tp is ineffective displaying Set the parameter of Plimit ventilate the machine and then note the peak value of pressure Compare the value with the setting Plimit If airway pressure can go up to the setting Plimit the peak value should not exceed the setting Plimit at 2cmH 0 At the same time the machine stops ventilating and turn to expiration after the inspiration was closed If airway pressure can not go up to the setting Plimit the error between output tidal volume and setting tidal volume should be in the stated range d Manual Mode At the state of Manual Mode only the alarm parameter is effective The invalidation shows Turn the Manual Machine switch to Manual Mode Press the bursa according to a stated rate At the same time the times of extrusion in one minute Compar
17. pressure upper limit of the ventilator to 60cmH 0 Connect the pressure sampling and U model manometer to injector Pressurize by injector to make the making the U model manometer show 60cmH 0 At the same time adjust the potentiometer W1 on the front board till the peak value become 60cmH0 on the beam Set the time of hold breath to OFF 5 25 50 When to OFF there is not flat pressure others the flat pressure is in existence At the same time you would find the time when the velocity of flow is zero is lengthening as the time of hold breath increased if you observe the waveform of flow 34 Aeon7500A service manual 10 Display of oxygen concentration Connect the O2 sensor with ventilator Firstly place the O2 sensor and oxygen analyzer in the air Secondly note the display data of the ventilator and oxygen analyzer Then place them into 100 pure oxygen Note the data again after 3 minutes The error should be in the range of 5 11 Monitor of the compliance C At standrad rating set the tidal volume to 0 500 mL 1000 mL in turn Note the the volume of inspiration tidal volume the peak value of pressure Ppeak and the pressure when the expiration is end Ppeep Count the C by the expressions as follow When the value of C is under 10 mL hPa the error is 2 mL hPa or else the error is 20 EVI AP aorta on 1 In the expressions AP Ppeak PEEP hPa Ppeak the peak value of pressure hPa PEEP the pressure when th
18. voltage 90 to 264VAC Capacity of current Type 220 to 240VAC 10A Three core cable Medical level 46 Aeon7500A service manual 5 3 Electromagnetic Compatibility Changing or reassembling this equipment without authorization may cause electromagnetic compatibility problems Contact with our company for assistance Designing and testing this equipment is in accordance with the following stipulations AN WARNING using cell phone or other radio radiant equipment near this product may cause malfunction Closely monitor the working condition of this equipment if there is any radio radiant supply nearby Using other electrical equipment in this system or nearby may cause interference Check if the equipment works normally in these conditions before using on a patient Be careful of the following when Anesthesia 7500A is connected Do not put any object which is not in accordance with EN60601 1 in the 1 5M range of patients An isolated transformer must be used for alternating current supply in accordance with IEC60989 or additional protective ground wires are equipped if all the devices for medical or non medical use are connected to Anesthesia 7500A by using signal input signal output cable If a portable all purpose outlet is used as the alternating current supply it must be in accordance with EN60601 1 1 and cannot be put on the floor Using another portable all purpose outlet is not recommended Do not connect the non
19. 5 50 25 0 If 0 displays and mains supply not connected the system will shut down Pressure monitoring range 20 to 80 cmH20 Paw t waveform display pressure axis varies with the upper alarm limit of Paw 0 to 30 cmH20 10 to 40 cmH20 31 to 50 cmH20 15 to 60 cmH20 51 to 80 cmH20 20 to 80 cmH20 Paw t waveform display time axis varies with the f setting 0 to 20bpm 0 to 15 sec 21 to 40bpm 0 to 10 sec 41 to 100bpm O to 5 sec Flow scale 90 to 90L min Time scale O to 15s Y Axis Tidal volume range 0 to 1 2L Y Axis pressure X Axis tidal volume Y Axis flow X Axis tidal volume 52 Aeon7500A service manual 5 7 8 O monitoring specification Response time Type of O sensor Useful life Operational principle Not more than 15 seconds Chemical fuel cell 12 months normal operating Oz monitoring modules can monitor and display oxygen concentration of the patient circuit and contain one oxygen sensor The O sensor can detect the proportionable voltage on its surface generated with partial pressure of Oo The O sensor is chemical fuel cell and its metal electrode can be oxidated when oxygen diffuses into it The current generated from oxidation proportion O partial pressure on the surface of electrode The electrode will be used up gradually in oxidation process The voltage of sensor would be affected by the temperature of gas mixture monitored Thermistor on the shell of sensor will
20. APL valve close fully Dryness lt 0 15 kPa The pressure generated by a wet unidirectional valve lt 0 14 kPa The pressure to open a wet unidirectional valve lt 0 1 kPa Compliance of absorber lt 50 ml kPa 49 Aeon7500A service manual 5 7 Anesthetic ventilator 5 7 1 Performance of ventilator Maximum security pressure Not more than 6kPa of airway system Compliance Not more than 40mL kPa Electrical safety Meet requirements for Class type B equipment specified in EN60601 1 Medical Electrical equipment Part one General requirement for safety Noise of whole unit Not more than 65dB A 5 7 2 Setting ventilation mode Ventilation mode Adjustable respiratory parameters VCV mode Vr f l E Tp Cinspiratory pause Pressure mode Vr f l E Plimit maximum airway pressure limit setting SIMV mode Vis fimvs Ti Vsens trigger sensitivity of volume Manual mode 5 7 3 Setting ventilating parameters Range Resolution Vr 0 50 to 1500mL 10mL Maximum V output limited by 75L min see 10 8 5 flow valve f 4 to 100bpm 1bpm E 1 0 5 to 1 8 0 5 Tp 5 to 50 OFF only available in VCV mode 5 Piirit 0 5 to 7kPa only available in Pressure mode 0 1kPa Vespe 1 to 30 L min only available in SIMV mode 1 L min 50 Aeon7500A service manual 5 7 4 Gas dynamics performance Gas source Gas component Rating pressure Input pressure range Flow valve range Output Anesthetic syste
21. Aeon7500A service manual Importance This manual provides information needed to service the Aeon 500A anesthetic machine This manual is intended for use by certified biomedical engineering technicians or personnel with equivalent experience and training in servicing this type of equipment It is recommended that the user complete the Aeonmed training class geared specifically to the Aeon7500A anesthetic machine While this manual covers the anesthetic machine configurations currently supported by Aeonmed it may not be all inclusive and may not be applicable to your anesthetic machine Contact Aeonmed for questions regarding the applicability of the information Company Beijing Aeonmed Co Ltd Add No 9 Shuangyuan Road Badachu Hi tech Zone Shijingshan District Beijing China P C 100041 Tel 8610 88799987 Fax 8610 88791201 E mail service aeonmed com Website Http www aeonmed com Aeon7500A service manual Contents L ANTRODUCTION ra AAA AA ne nie Wee a cuite aie 1 1 1 WHAT THE MANUAL S S YMBOLS MEAN a ad l 122 DEFINITIONS ACRONYMS AND ABBREVIATIONS 0 is A A eus 3 1 3 TOOLS AND EQUIPMENTS FOR SERVICING AND TESTING sss see ee 4 2 TRUCTUREANDOPERATION PRINCIPELE sisi add 5 2 1 PENA e a e PE E teens Le inseueaccame ees 5 2 2 PNEUMATIC SYSTEMS TU o otal 7 22h TOUS TT TT 7 A Ey SSI 916 RRA E Gi or Ne Te IN Fail DE CORNER 9 22 ADO POCA CC a ee ne ne lee ee ae a SR ee lI Ze DOLLONS ASS T V E A A E E AOA 14
22. and tube seeper Eliminate the seeper between inhale tidal volume and Check the flow sensor Calibrate flow sensor exhale tidal volume The sampling tube leaks Reconnect it rightly The ventilator works for some Mains supply is not steady If the undulation of mains supply is time and then power off Battery capacity is not enough very strong recommend to use manostat Check and charge Flow sensor calibration failed Affected by temperature drift Avoid seeper and calibrate it after operating 20 minutes 43 Aeon7500A service manual 5 Specifications 5 1 System technical specification 5 1 1 Drive Gas supply Pipeline O Air NO Cylinder O2 N20 Connect to cylinder PISS pin indexed safety system Reducer 400kPa Connect to pipeline DISS male DISS female NIST ISO 5359 All fittings used to connect Oz Air and N20 pipeline gas supply are all ready Display pressure Gauges with color coded Input pressure at pipeline 0 4MPa inlets A WARNING All gas supplies must be in accordance with medical level A CAUTION Pressure at pipeline inlets must be according to 280 to 600kPa when delivering ceases in the anesthetic gas delivering system 5 1 2 Flow Gas component Scale thin tube Scale thick tube O2 0 05 to 1 L min 1 1 to 10 L min NO 0 05 to 1 L min 1 1 to 10 L min Air 0 1 to 10 L min 44 Aeon7500A service manual Accuracy With regard to the flow between 10 of full scale or 300 ml min hi
23. auto compensate temperature difference inside the sensor Signal processing and circuit analyzing can be used in the O2 monitoring modules So the signal of Oz sensor could be transformed to O concentration Besides the concentration displays on the screen and compares with alarm limit value saved if the concentration exceeds the limits alarm should be occurred 53 Aeon7500A service manual 6 Schematics 10 11 12 13 14 15 16 L 18 19 20 2i N20 pipeline Oz pipeline Air pipeline Pressure Gauge Checkvalve Reducer 400kPa O reservoir Reversal valve 100 to 220kPa Whistle N2O cut off 20 to 200kPa Reducer 250kPa Magnetic valve Flow valve Safety valve 6kPa Exhaust valve Spill over valve 0 1 to 0 3kPa Bellows Manual reversal valve Manual reservoir bag APL valve 0 19 to 0 6kPa Airway pressure gauge 22 29 24 29 26 Zi 28 29 30 31 32 33 34 35 36 37 38 39 40 54 Absorber Oz flush N20 O linkage O flowmeter Air flowmeter N20 flowmeter Vaporizer 1 Vaporizer 2 Micro checkvalve To air Exhalation valve Inhalation valve O sensor Probe Patient Flow sensor Pressure sensor Ventilator Display screen Aeon7500A service manual 55 Aeon7500A service manual 56
24. c Turn on and turn off the vaporizer respectively and do the check above again The value of flowmeter should less than 50mL min 3 1 2 Flowmeter linkage device Turn off the controlling valve of oxygen Then adjust the controlling valve of N2O slowly making the flux show of N20 flowmeter become 1 5L min 3 L min 6 L min 9L min in turn The corresponding flux show of oxygen should be no less than 0 5 L min 1L min 2L min 3 L min 3 1 3 N20 cut off device Connect the O and N2O can replace by O2 Open the controlling valve of Oz and N2O on the flowmeter Then gradually reduce the pressure of the oxygen supply Observe the change of flux of O and N20 In the whole process the ratio of flux O2 to N2O must be larger than 1 3 Namely the flux of oxygen must be three times of the flux of N2O all the time N20 would be cut off if the pressure of oxygen is in the range of 0 02MPa to 0 2MPa 3 1 4 Oxygen lack alarm a Turn on the oxygen supply making the pressure from OMpa to normal b In the state of normal pressure of oxygen ventilate the machine and last more than 30 seconds c Cut off the oxygen supply In the process of turning on the oxygen supply observe the value of O2 pressure gauge The alarm should disappear before the value get to 0 23Mpa In the process of turning off the oxygen supply observe the value of O2 pressure gauge The alarm should happened when the value is in the range of 0 05MPa 0 22MPa and the time of
25. capacity of battery may be not enough or connection failed Suggest updating Shut off power immediately and call professional to deal with it Warning Do not attempt startup it forbidden supply current again continuing to Reconnect it rightly Make the working normally sure power supply Charge the battery or reconnect it rightly Switch power supply damaged or Replace the new one or reconnect it connection failed rightly Press POWER key no any reaction occurs and indicator of switch power supply is bright 1 Pressing time too short 2 9 pin line is not connected 3 Circuit failure Increase pressing time Connect 9 pin line correctly Turn to professionals Any operation for knob and keys is Program chip failure Turn off the apparatus contact our invalid company Any operation for keys is invalid only the knob can be responded But rotating function failure push the knob the tidal increased volume Connection of keyboard is wrong Reconnect according to this manual SIMV mode can t be found Optional function eo The bellows doesn t work Flow valve controller lines disconnected Flow valve calibration failure Connect the lines Recalibrate flow valve Caution It takes longer time in the calibrating process 41 Aeon7500A service manual The monitoring data of tidal volume is inaccurate Restart frequently
26. cy 2 5 of full scale Pipeline gauge Scale 0 to 1MPa Resolution 1MPa Accuracy 2 5 of full scale Airway gauge Scale 2 to 10kPa Resolution 200Pa Accuracy 2 5 of full scale 9 9 Environment requirements Temperature Operation 10 to 40 C Storage 10 to 40 C Relative Humidity Operation Not more than 80 non condensing Storage Not more than 90 non condensing Atmospheric pressure Operation 86 to 106kPa Storage 86 to 106kPa Height Operation 500 to 800 mmHg 3565 to 440m Storage 375 to 800 mmHg 5860 to 440m 48 Aeon7500A service manual 5 6 Breathing system technical specifications Compensation of fresh gas Absorbent Connection Leakage of breathing system Resistance of breathing system Resistance of APL valve Leakage of connector Resistance of checkvalve Flow compensation range 0 to 10 L min Gas components O2 N20 air anesthetic agent Capacity 1500 ml each Common Gas Outlet ISO 5356 connector At pressure of 3 kPa Leakage of flow lt 150 ml min At flow of 60L min Resistance of exhalation lt 0 6 kPa Resistance of inhalation lt 0 6 kPa At flow of 30L min Resistance of exhalation 2 2 kPa Resistance of inhalation 2 2 kPa Patient cycle of small resistance should be used in accordance with the relevant standard At flow of 60L min resistance of flow 0 05 to 3 kPa At flow of 30L min resistance of flow 0 1 to 0 5 kPa Resistance of flow lt 50 ml min
27. e expiration is end hPa 12 System submenu Press MENU key the menu window pop up on the screen showing as follow Go into this menu you can select the mode of display between demo and real time waveform There is two choice of language English and Chinese Waveform includes Flow t Paw t V t CO gt t P V ring You can select the unit of pressure from 0 1kPa and cmH 0 Menu Da ba a E Mene T D lkPa Y 35 Aeon7500A service manual 13 Alarm setting Menu a Alarm for exceeding the upper limit of per minute expiration volume Set the upper limit value of per minute expiration to 1L 5L 10L and 20L in turn adjust the tidal volume until the alarm for exceeding the upper limit of per minute expiration volume occurs Note the data of per minute expiration volume inspecting by the breath inspecting machine Compare it with the setting data If the per minute expiration volume is below 5L the error is in the range of 1 L If it is above 5L the error is in the range of 20 b Alarm for exceeding the lower limit of per minute expiration volume The method is same as the a c Alarm for exceeding the upper limit pressure of air passage Set the upper limit pressure of air passage to 2kPa 4kPa 8kPa in turn Connect the manometer to the pressure sampling outlet Then pressurize the sampling outlet with injector until the alarm of exceeding the upper limit pressure of air passage occurs Note the volume of the manometer
28. e it with the monitor data of breathing frequency the error should be less than 2 BPM Compared the monitor data of tidal volume with the measured value of air flow meter the error should be in the range of 10 e SIMV Mode At the state of SIMV the parameter of Tp and Plimit are noneffective showing the area of f display fmv l E display the time of inspiration T with the unit of second Vsens be come effective with the unit of L min If we set the fimy to 4 BPM Vsens to 3 L min pressed the bursa the ventilator can also touch off and ventilate 38 Aeon7500A service manual 18 Operating key The key on the faceplate of the ventilator should accord with its function When an alarm accruing press the key of Silence the alarm should be muted At the same time there is a figure which is degressioning from 110s in the area of alarm condition indication The key of Manual can switch come and go between Manual Mode and other Modes 19 Safe working pressure of air passage At the standard state set the pressure upper limit of the ventilator to 80cmH 0 plug up the patient end and then note the pressure of the air passage when the safety valve deflating This pressure should be in the range of 5kPa 6kPa You should adjust the safety valve of air passage if it can not satisfy the require 39 Aeon7500A service manual 4 Troubleshooting 4 1 Anesthesia machine troubleshooting and analyzing Symptom Possible Cau
29. ectromagnetic valve but also receives and processes the pressure signal the flow signal It receives the inputs from the panel and sends the signal that will be outputted to display to the display plate The voltage stabilizing power supply provides the circuit needed voltages The functions of the subsystems above are set and adjusted by the keys on the panel 17 Aeon7500A service manual Oxygen Supply Filter Pressure Resistance Rerilato Adjust Display Gas cut off Main Board ad Valve Secondary Expiratory Atmosphere Regulator pane y Beep Flow Control Valve Power Pressure Relief Air Oxygen Absorber Valve Mixer Bellows Circuit Flow Sensor Oxygen Concertration Sensor Input Air Filter Y Piece Pressure Sampling Pipe a ke Patient PA Figure 2 2 Operation principle sketch diagram of ventilator 18 Aeon7500A service manual 2 3 2 2 MV300 components Figure 2 3 MV300 components Figure 2 4 MV300 backview Cable interface P amp V interface Analogue interface Connect with power supply 6 Fuse Cr Power bora 8 Switch power supply 9 ovine ifsa LT 19 Aeon7500A service manual 2 3 2 3 Power board Function Providing miscellaneous power supply for internal circuit such as logic power supply drive power supply for valve body analogue power supply for amplifier circuit etc 1 connect with s
30. ensor board 2 connect with top light 3 connect analogue interface 4 connect switch power supply 2 3 2 4 Sensor board Function Amplify system control signal and drive executive element 1 connect O2 sensor 2 connect flow valve 3 connect cable interface 4 connect exhalation valve 5 connect power baord 20 Aeon7500A service manual 2 3 2 5 Exhalation valve It s made up of gasket spring and block seat as shown in the following figure Caution Block seat can move freely after fixing 2 3 2 6 Flow valve and reducer Flow valve control board Drive circuit for flow valve 21 Aeon7500A service manual 2 3 2 7 Switch power supply Function Change AC to DC for providing power required Switch power supply Connect power board Analogue harness capacitance 0 47uf 1600V Fuse 250V 1A 65X20 T Ea Connect absorber heater optional 22 Aeon7500A service manual 2 3 3 MV300 screen Figure 2 5 MV300 screen frontview On the back panel of MV300 screen there are three interfaces CRT interface Cable interface and Analogue interface CRT interface used to connect external display Cable amp Analogue interfaces provide power supply and signal to the display Figure 2 6 MV300 screen rearview 23 Aeon7500A service manual 2 3 3 1 MV300 screen internal structure E E L iit iii II Il fil oer ay Ww I N Figure 2 7 MV300 screen
31. entilatory capacity meter Observe the monitoring value of minute volume after one minute Compare it with the calculated value of the expressions MV VTexT the error should in the range of 20 7 The display of total frequency Set the respiratory rate to 4 BPM 20BPM 40BPM 100BPM in turn Compare the monitor data with the times of ventilating in one minute if the rate is below 20BPM the error should be in the range of 2BPM otherwise 10 8 IE At the standard rating change the l E from 1 0 5 to 1 8 we can see the respair time of ventilator changed clearly namely the time of inspiration is shortening gradually 9 The display of pressure in air passage Connect the manometer and pressure sampling outlet of ventilator to standard batching container Pressurize the pressure sampling outlet by the standard batching container to make the manometer stabilize at OkPa 1kPa 2kPa 4kPa 6kPa Note the undee data of airway pressure If the pressure is in the range of OkPa 2kPa the error should be 200Pa if the pressure is 2kPa 6kPa the error be 10 You should check as the flow if not meet the demand At the standard settings put the pressure sampling outlet into the air adjust the potentiometer W3 on the front board At the same time observe the pressure waveform on the screen Firstly adjust the peak value to above 2cmH20 Secondly adjust the potentiometer W3 negative direction till the peak becomes 0 And then set the
32. gas overflowing The sponge gas entrance is adopted for the unidirectional valve to reduce noise and filtrate the gas to be breathed in A safety valve is installed on the side face of the gas room to prevent that the air pressure is too high and will make hurt to a patient When the air pressure exceeds the set value of the safety valve 6kPa the safety valve can open automatically and the gas will be discharged from the safety valve The electromagnetic valve will be closed in expiration the pressure exerted on the diaphragm of the expiration valve will disappear and the diaphragm will loose Thus the gas room connects with the atmosphere directly The gas compressed in the bellows by the ventilator will discharge to the atmosphere through the expiration valve The process above will be repeated along with the breath rhythm During the above procedures it is the electromagnetic valve that controls the gas flowing direction and is controlled by the mainframe board In inspiration the electromagnetic valve will be opened while in expiration it will be closed In the Figure 2 2 the display plate is used for the digital display for the respiration rate breath frequency the tidal volume and the oxygen concentration the display of the corresponding display lamps and the display of the luminous line of the pressure The mainframe board is the central processing unit of the ventilator circuit part It not only controls the opening and closing of the el
33. gher is preferred and full scale under the condition of 20C 101 3kPa flow meter precision is within the 10 of indicated values The precision is 4 degree when the flow is lower than 10 of full scale or 300 ml min higher is preferred Adjust O and Nitrous oxide proportionally to ensure the O concentration is no less than 25 O flush 35 to 75 L min O failure alarm and the associate cut off device O pressure O failure alarm 50 to 220kPa N 0 cut off 20 to 200kPa A CAUTION O failure alarm takes precedence of N20 cut off 5 1 3 Classification According to IEC60601 1 Anesthesia 7500A belongs to the following classifications o Class equipment o Type B equipment e General equipment e Mobile eguipment e Flammable anesthetic cannot be used e Operate continuously 45 Aeon7500A service manual 9 2 Power supply Voltage 230VAC 50Hz Input power Not more than 50VA Maximum input current 5 5A Fuse at mains supply inlet 250V 6A 5X20 F Fuse above auxiliary mains socket 250V 2A 5X20 F outlets outlet Maximum output current of 1 5A each 4 5A total auxiliary mains socket outlets Fuse in rear of ventilator 250V 1A 5X20 T Earth resistance lt 0 20 AN WARNING Then connection of equipment to the auxiliary mains socket outlets can increase the patient leakage currents to values exceeding the allowable limits in the event of a defective protective earth conductor 5 2 1 Power cord Length 9 meters Rating
34. lating parameters sense titi les ne lists antenne tiens a 50 D E ATT TTT eT med bia bo died date ui 51 ID DEMAS ALTA POT QIN CICTS lt A AAA Aa 51 DFO ER tale la alt cis 52 57 7 MONO performante mar Reda sde ii etienne anis 52 DEO OF IMNONUOTINE DEN 53 6 SCHEMATICS ETH 54 Aeon7500A service manual 1 Introduction 1 1 What the manuals symbols mean AN Warnings and AN Cautions indicate all the possible dangers in case of violation of the Stipulations in this manual Refer to and follow them A WARNING indicates potential hazards to operators or patients A CAUTION indicates potential damage to equipment Instead of illustrations other symbols may also be utilized Not all of them may necessarily appear in the equipment and manual The symbols include ON Power Type B equipment Warning or Caution ISO OFF Power O E A 7000 0434 ra Gansu A NOTE refer to the manual a SR U AN IEC601 1 Protectively earth 4 Dangerous Voltage Equipotential SN Serial Number Input Date of manufacture 6 O Address of manufacture E I Output Inspiration flow Expiration flow Inspiration 00 MAA EXpiralic 1 Aeon7500A service manual 04 Alarm Silence Ventilator operate Auto ventilation Movement in one direction Lock Oxygen flush Directions of Drain Valve EC REP XXX View the reading on the top of float Bag operate Manual ventilation Movement in two directions Unlock CE
35. m O2 250kPa 280 to 600kPa 5 to 75 L min Pressure range 0 to 6kPa flow range 0 to 75 L min 5 7 5 Setting alarm parameters Item MV minute volume Paw airway pressure f respiratory frequency FiO gt Oxygen concentration N CAUTION AX CAUTION Limit Range Resolution Lower 0 to 20L min 1L min Upper 1 to 25L min 1L min Lower O to 2kPa 0 1kPa Upper 2 to 8kPa 0 1kPa Lower 0 to 100bpm 1bpm Upper 4 to 110bpm 1bpm Lower OFF 21 100 1 Upper 21 100 OFF 1 If the alarm limits of FiO are OFF and O sensor not connected the No O sensor alarm will cancel All lower limits of parameters in above table may not be set up the upper limits nor may the upper limits be set below the lower limits 51 Aeon7500A service manual 5 7 6 Volume Type of volume sensor Pressure difference Physiological dead space of 9 5mL sampling probe 5 7 7 Monitoring performance Item Vr MV f Poeak Polat FiO Electric quantity Paw t waveform Flow t waveform V t waveform Paw V loop V FLOW loop Range 0 to 2000mL 0 to 30L min 0 to 100bpm O to 8kPa 0 to 8kPa 14 to 105 Resolution Accuracy 1mL 30mL below 200mL 15 other 1L min 15 1bpm 15 above 20bpm 1bpm other 0 1kPa 200 Pa below 2kPa 10 other 0 1kPa 200 Pa below 2kPa 10 other 1 3 0 to 99 mL cmH2O 1 mL cmH2O 2 mL cmH0 below 10 mL cmH20 20 other 100 7
36. ng picture And Each LCD manufacturer has a specified inverter such as NEC 6 LCD harness SHARP LCD harness 27 Aeon7500A service manual 2 3 3 7 Knob assembly Knob PCB intend for connecting coder 28 Aeon7500A service manual 3 Testing 3 1 Pneumatic system test 3 1 1 Test pipeline leakage Leak of the line from the inlet to flow valve a Turn off the flowmeter on the anesthetic machine Ventilate the machine And connect another flowmeter in series to air delivery pipe between air supply and anesthetic machine b Adjust the pressure of air supply to normal working range 0 4 0 45MPa Note the value of flow meter after the pressure became steady refer to figure 1 The value should be less than 25mL min Flowmeter sas supply Anesthetic machine Gas inlet Leak of the line from flowmeter to the collective gas outlet a Turn off the first flowmeter on the anesthetic machine Connect another flow meter in series to the outlet of the first flowmeter and the manometer to the collective gas outlet Refer to figure 2 Pressure gauge Flowmeter Flow control valve Las supply Anesthetic machine GO 29 Aeon7500A service manual b Turn off the second flowmeter Then adjust the first flowmeter on the anesthetic machine to 100ml slowly adjust the second flowmeter making the value of manometer keep 3KPa At this time note the value of the second flowmeter
37. sampling for exhalant gas 6 Non absorbed gas leave absorber 8 Flow from ventilator 10 Inhalation valve non return 13 Aeon7500A service manual Auto ventilation gas flow diagram G Exhalant gas from patient 1 3 Pass exhalation valve non return 4 Airway pressure gauge 5 Exhalant gas enter absorber 7 Fresh gas compensation 9 Manual Auto ventilation switch 11 Inhalant gas to patient Aeon7500A service manual 2 2 5 Bellows assembly Ports Figure 2 1 Ports of bellows assembly 1 Breathing system connector 2 Exhaust gas port 3 Driven gas connector 4 Adapter A WARNING Never connect exhaust gas port with sub atmospheric system directly Or else leakage of breathing system generates The adapter can be used to connect the waste gas scavenging system to the bellows assembly if the standard pipeline is used in the waste gas scavenging system Ventilating circulation Inhalation primary phase Exhalation primary phase 1 Exhalation valve 6 Driving gas 2 Driving gas 7 From patient circuit 3 Gas of patient circuit 4 Spill over valve 5 To patient circuit 14 Te 4 M s El a al ll S EE T m ENTER B H E Exhalation end phase 8 Excess gas of patient circuit Aeon7500A service manual 2 2 6 Vaporizer Structure 6 AL OFF lock position filling cap liquid level indicator 5 cai vave 6 eotoreoding ra Operational principle
38. se Recommended Action Patient breathing circuit APL valve is on Turn APL valve to off aale soda lime in the cylinder port Reinstall or remove the is not sealed very well natrium calcareousness grains at the joint Screw tubes are broken or Replace or reinstall the connector loosens valves loosen Tighten them Bag ventilator switch failure Please contact eligible service representative Excessive pressure APL valve is adjusted Adjust it properly caused by manual incorrectly ventilation Switch to bag control Leakage occurs at bag Please contact eligible service bellows charging switch ventilator switch representative to ventilator control bag charging APL valve doesn t work APL valve failure Please contact eligible service normally representative 40 Aeon7500A service manual 4 2 MV300 Troubleshooting and Analyzing Press POWER key the screen is not bright Press POWER key not only the screen and the keyboard s lights do not work also high frequency sharp voice occurs at the same time Press POWER key no abnormal phenomenon else but screen and keyboard s light don t work Press POWER key no any reaction indicator of switch occurs and power supply is not bright For early machines capacitance may be not matched The circuit is abnormally The circuit cut off perhaps the power line of sensor board disconnected Connection with power supply failed When to use battery the
39. utput contrasted with the set point is more than 20 or 20 as each change of the set of tidal volume please check the proportioning valve The process is under the menu of the sensor select the check of the proportioning valve And change the water lunge with 3L bursa Go into password 2020 then select OK to checking Note At the process of checking you can exit by pressing menu 5 Check the tidal volume At the standard rating fix the MV300 onto the anesthesia machine connect the flow sensor and pipelines and then set the tidal volume to Oml 200mL 400mL 600mL 800mL 1500mL in turn Connect the 3L bursa and the fish joint haggis with the patients respectively when use fish joint haggis the max of tidal volume should be less than 600mL After the display on the screen become steady measure the tidal volume using the ventilatory capacity meter You should get a set of data as follow 0 15mL 200mL 20mL 400mL 40mL 600mL 60mL 800mL 80mL 1500mL 150mL Compare the measured data with the monitor data by MV300 the error should in the range of 10 At the standard rating we can adjust the respiratory rate to 10 BPM if the tidal volume can not reach 1500mL 33 Aeon7500A service manual 6 The display of minute volume At the standard setting set the tidal volume to Oml 200mL 400mL 600mL 800mL and 1200mL in turn After the display on the screen become steady measure the expiration tidal volume VTe using the v

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